A:
Positive:
1 x 203736055 x 40747217 x 291051519 x 107229535 x 58210395 x 214459133 x 153185665 x 30637
Negative:
-1 x -20373605-5 x -4074721-7 x -2910515-19 x -1072295-35 x -582103-95 x -214459-133 x -153185-665 x -30637
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 20,373,605, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 20,373,605 | |
| -1 | -20,373,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,373,605.
Example:
1 x 20,373,605 = 20,373,605
and
-1 x -20,373,605 = 20,373,605
Notice both answers equal 20,373,605
With that explanation out of the way, let's continue. Next, we take the number 20,373,605 and divide it by 2:
20,373,605 ÷ 2 = 10,186,802.5
If the quotient is a whole number, then 2 and 10,186,802.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 20,373,605 | |
| -1 | -20,373,605 |
Now, we try dividing 20,373,605 by 3:
20,373,605 ÷ 3 = 6,791,201.6667
If the quotient is a whole number, then 3 and 6,791,201.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 20,373,605 | |
| -1 | -20,373,605 |
Let's try dividing by 4:
20,373,605 ÷ 4 = 5,093,401.25
If the quotient is a whole number, then 4 and 5,093,401.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 20,373,605 | |
| -1 | 20,373,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 665 | 30,637 | 153,185 | 214,459 | 582,103 | 1,072,295 | 2,910,515 | 4,074,721 | 20,373,605 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -665 | -30,637 | -153,185 | -214,459 | -582,103 | -1,072,295 | -2,910,515 | -4,074,721 | -20,373,605 |
Here are some more numbers to try:
Try the factor calculator